Brushing apparatus for conveyer-belts.



BEST AVAILABLE COP No. 766,013. PATENTBD JULY 26, 1904.

c. K. BALDWIN. BRUSHING APPARATUS FOR GONVEYER BELTS.

- APPLICATION FILED MAR. 18. 1903. NO MODEL. 5 SHEETS-"SHEET 1.

WITNESSES: 6%,?

IINVENTOH n 2 ATTORNEY"? WMJ LE COP BEST AvAxLAB .No. 766,013. PATENTEDYJULY 26 1904. G. K. BALDWIN. BRUSHING APPARATUS FUR GONVBYER BELTS. APPLICATION TILED MAR. 18, 19.

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INVENTOI? 8% W ATTOHNEY87 WITNESSES.

LABLE CO BES V P-ATENTED JULY,26, 1904.

' 0. K. BALDWIN.

BRUSHING APPARAT S FOR CONVEYBR BELTS. APPLICATION FILED MAR. 18. 1903.

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BEST AVALABLE Uuv 766,013.

PATENTBD JULY 26, 1904.

. c. K. BALDWIN. BRUSHING APPARATUS FOR CONVEYER BELTS.

APPLICATION FILED MA?! 18, 1903.

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BEST AVNLABLE coP No. 766,013. PATENTBD JULY 26, 1904. G. K. BALDWIN. BRUSHING APPARATUS FOR GONVBYER BELTS.

APPLIOAT'ION FILED MAB..18. 1903. N0 MODEL. 5 SHEETS-SHEET 5.

-( :lilllllllllllilflllllllillllll BEST AVAILABLE'COP" UNITED STATES Patented July 26, 1904.

PATENT .OFFICE.

CLARENCE KEMBLE BALDWIN, OF NEW YORK, N. Y., ASSIGNOR TO THE ROBINS CONVEYING BELT CO., A CORPORATION OF NEW JERSEY.

BR USHING APPARATUS FOR OONVEYER-BELTS.

SPECIFICATION forming part of Letters Patent N 0. 766,013, dated July 26, 1904;.

Application filed March 18, 1903.

for cleaning conveyer-belts and other uses;'

and its objects are to improve upon the con struction of such apparatus and enable the requisite brush speed to be obtained without a separate source of power, while at the same time affording means for adjusting the brush to take up wear without interfering withthe brush-driving mechanism and connections.

Further objects of my invention will hereinafter appear; and to these ends my invention consists of apparatus for carrying out the above objects embodying the features of construction, combinations of elements. and arrangement of parts substantially as hereinafterfully described and claimed in this specification and shown in the accompanying drawings, in which- Figure 1 is a side elevation of apparatus embodying my invention, showing a brush driven by belting from a counter-shaft and without gears. Fig. 2 is an end view of the same, partly in section. Fig. 3 is a side elevation of a modification of the apparatus illustrated in-Figs. 1 and 2 and showing the brush belted directlyto a snub-pulley or idle pulley. Fig. l is a side elevation ofa modified form of apparatus, showing a brush driven from a snubpulley with the interposition of gears. Fig. 5 is an end view, partly broken away, of Fig. 4. Fig. 6 is an enlarged detail view of the gearing with the gear case shown in dotted lines. Fig. 7 is a side elevation of a brush on a fixed dump and connected to be driven from the lower pulley with the interposition of gears. Fig. 8 is a transverse sectional view on the line 7 7 of Fig. 7. Fig. 9 is a side elevation of a brush driven from the upper pul- Serial No. 148,354. (No model.)

the travel of the under side of the traveling belt B, which may be any suitable continuous conveyer-belt, and by this means the belt is continuously cleaned and the particles swept off and thrown into the stream of the belt. The brush A is driven'in' this instance by power derived from one of the rotating parts of the conveying apparatus, and suitable operative connections are provided for trans- -mitting the motion of the belt to the brush to rotate the same, with or without interposition of gearing. In different instances different mechanism is provided; but provision is afforded in each instance for adjusting the brush relatively to the conveyer-belt in order to take up wear on the brush.

In Figs. 1, 2, and 3 the brush'A is shown driven by suitable belting, in one instance from the head-pulley G through a countershaft E'and in another instance from the idle pulley D. The brush is suitably supported in such manner that it may be moved to and from the conveyer B. According to the construction shown a bracket F is suitably'pivoted at G to the frame H and provided with a slotted quadrant I at one end, cooperating with a tightening-pin J, mounted in the frame H, so that the bracket F'may be swung about the pivots G to move the brush, pivotally mounted at K on the other end of the bracket,

to and from the conveyer. The co'unter-shaft E, carrying-the pulleys L and S, is provided in bearings upon the frame H in order to obtain the requisite distance between centers for suitably driving the brush A by belting. A belt 0' 0 peratively connects a pulley P on the shaft Q, of the head-pulley C with the belt L on the counter-shaft E, While another belt R operatively connects the pulley S on the counter-shaft E with the pulleyT, connected to fere with the belt-drive the counter-shaft E,

brush-shaft K, and pivots G should be upon substantially the same straightline, as otherwise the distance between centers for the driving-belt R will be shortened when the brush A is adjusted for wear. In Fig. 3, as stated, the brush is driven from an idler-pulley D, over which the conveyer-belt B passes, and in this instance the requisite direction of rotation relative to the travel of the conveyer-belt is obtained with a single belt II. In the con struction so far described the desired speed of the brush is obtained by properly proportioning the diameters of thepulleys P,L, S, and T.

In Figs. e to 8 gearsV and W are employed to increase the speed of v the brush, which is necessary, owing to the slow speed at which theconveyer-belts run. In Fig. 4 the power for driving the brush is shown derived from the snub-pulley X, over which the conveyer B passes. In this instance to the shaft is connected the idle pulley Z, belted, by means ofa suitable belt (I, to a pulley aon the shaft 6,, journaled in the frame of the apparatus. Aflso connected to the shaft-b is a gear V, meshing with the pinion W,'connected to the brush-shaft K. As shown, the gearing is connected to speed up the brush, and the construction of the bracket F being as hereinbefore described the brush may be moved to and from the conveyer Without interfering with the drive, for one gear rolls upon the other as the bracket is rocked upon the shaft 6, which in this instance forms its pivot. The gears may be arranged within a suitable gearcase 50.

Fig. 7 shows substantially the same arrangement described in connection with Fig. 4, the brush being illustrated uponafixed dump and deriving its source of power for driving from the lower pulley Yupon the shaft f, to which is connected a pulley 1, connected by the belt it with the pulley it upon the shaft 6, to which shaft is also connected the gear V,

' meshing with the pinion W upon the brushshaft K. The brush is moved to and from the belt, as hereinbefore described, by means of the bracket F, pivoted to the shaft 6.

In Fig. 9 the brush is shown on a fixed BEST AVAILABLE cop pulley for taking up the slack of the conveyerbelt would vary the distance between the'center of the lower pulley and the axis of the brush, which would interfere with the driving-pulley for the brush. In this instance a gear and two pinions are used, one of which is an idle pinion 7;, to give the proper direction of rotation to the brush A. In this instance the bracket F is provided 'With two bearings j and is for the pinion Z,

connected to the brush-shaft k and the idle pinion a The gear 0 is mounted on the shaft g, upon which the bracket F is pivoted, and the belt 0, as in Fig. 1, connects the pulley P with the pulley L on the counter shaft E. Another belt R connects the pulley Z with the pulley 10 upon the stud G, and by means of these operative connections described the required direction of rotation and speed of the brush A are obtained.

In Figs. 12 and 13 the brush A is geared directly to the head-pulley C by means of the I gears q 1' and pinion s, the gear 9 being upon the shaft Q and meshing with the gear 1' upon the stud G. The gear 1' then meshes with the pinion s on the brush-shaft K. In this modification the head-pulley C is mounted, in connection with a take-up mechanism for taking up the slack of the belt, upon the slides 25, slidable upon the tracks or rails v, by means ofwhich construction the slack in the conveyer-belt B may be taken up. According to the construction shown the entire brush mechanism is attached to the slides t of the take-ups, so that as the pulley and take-ups are moved the entire brush mechanism moves with it; but this arrangement of direct gearing may of-course be used with a stationary head with pillow-blocks substituted for takeups.

Obviously some features of my invention may be used without others, and my invention may be embodied in widely-varying forms.

Therefore, without limiting myself to the construction shown and described nor enumerating equivalents, I claim, and desire to obtain by Letters Patent, the following:

1. The combination with a continuous traveling conveyer-belt, of a rotary brush for cleaning the conveyer-belt, a belt and gearing operatively connected to drive said brush by BEST AVAlLABLE COP,

derived .from the conveyor-belt, and

5 for adjusting said brush to take up wear, ubstantially the purposes set forth.

- The combination with a continuous trav- "nveyer-belt and the head and tail pul- :refor, of an idle pulley over which thepasses, and a rotary brush for clean- ,ne conveyer-belt' and connected to be en from said idle pulley, for substantially purposes set forth.

3. The combination with a continuous traveling conveyor-belt, of an' idle pulley over which the same passes, a rotary brush for cleaning the conveyor-belt and connected to be driven from said idle pulley, and means for adjusting said brush to take up wear, for substantially the purposes set forth.

4. The combination with a continuous traveling conveyer-belt and its head and tail pulleys, of ashaft and an idle pulley thereonovcr which the conveyer-belt also passes, and a rotary brush belted to the idle-pulley shaft for cleaning the conveyer-belt, for substantially the purposes set forth.

5. The combination with a continuous traveling conveyer-belt and its head and tail pul leys, of a shaft and an idle pulley thereon over which the conveyer-belt also passes, a rotary brush for cleaning the conveyer-belt provided with a pinion, and a gear meshing with said pinion and belted to the shaft of the said idle pulley, for substantially the purposes set forth.

6. The combinationwith a continuous traveling conveyor-belt, of a shaft and an idle pulley thereon over which the conveyer-belt passes, a rotary brush for cleaning the conveyer-belt provided with a pinion, a gear meshing with said pinion and belted to the shaft of the said idle pulley, and means for adjusting said brush to take up wear, for sub stantially the purposes set forth.

7. The combination with the head-pulley and a continuous traveling conveyor-belt passing over the same, of a counter-shaft connected to be driven by power derived from the head pulley, a rotary brush for cleaning the conveyer-belt connected to be driven from the said counter-shaft, and means for adjusting said brush to take up wear, for substantially the purposes set forth.

8. The combination with the head-pulley and its shaft, of a continuous traveling conveyer-belt passing over said pulley, a countershaft belted to the head-pulley shaft, a rotary brush belted to the said counter-shaft for cleaning the conveyer-belt, and means for adjusting said brush to take up wear, for substantially the purposes set forth 9. The combination with the headpulley and its shaft, of a continuous traveling conveyer-belt passing over said pulley, a countershaft belted to the head-pulley shaft, a gear belted to the said counter-shaft, and a rotary brush for cleaning the conveyer-belt provided with a pinion'connccted to be driven from said gear, for substantially the purposes set forth.

10. The combination with the head-pulley audits shaft. of a continuous traveling conveyer-belt passing over said pulley, a countershaft belted to the head-pulley shaft, a gear belted to the said counter-shaft, a rotary brush for cleaning the conveyer-belt provided with a pinion connected to be driven-from said gear, and means for ad uSting said brush to take up wear, for substantially the purposes set forth.

11. The combination with the head-pulley T belted to the said counter-shaft, and a rotary brush for cleaning the conveyer-belt provided with a pinion and an idle pinion meshing with said gear and the first-named pinion, for substantially the purposes set forth.

12. The combination with the head-pulley and a continuous traveling conveyer-belt passing over the same, of a rotary brush for cleaning the conveyer-belt geared directly to be driven from the head-pulley, and means for adjusting said brush to take up wear, for substantially the purposes set forth.

13. The combination with a continuous traveling conveyer-belt, of a take-up mechanism for compensating for the slack of the belt, and a rotary cleaning-brush deriving its power from the belt and movable with the said takeup mechanism, for substantially the purposes set forth.

14. The combination with acontinuoustraveling conveyer-belt, of means for compensating for the slack of the'belt, a rotary cleaning-brush mounted for movement with said compensating means, and means for adjusting said brush to take up wear, for substantially the purposes set forth.

15. The combination with a continuous traveling conveyer-belt, of a shaft and pulley, mechanism for transmitting the motion of the belt to said shaft to drive the pulley, a bracket pivoted for movement to and from the belt, a brush mounted upon said bracket for cleaning the belt, and belt connections between the brush and said pulley, the shaft of said pulley, the pivot of the bracket, and the axis of the brush being in substantially the same plane, whereby the brush may be moved to and from the conveyer-belt to take up wear without causing substantial slack in said belt connection between the brush and the pulley, for substantially the purposes setforth.

16. The combination with a continuous traveling-conveyer-belt, of a shaft and pulley mechanism for transmitting the motion of the belt to said shaft to drive the pulley, a bracket 4e 766,013 BESTAVAILABLE COP pivoted for movement to and from the belt, a the pulley, for substantially the purpoi brush mounted upon said bracket for cleanforth.

iug the belt, and beltconnections between the In testimony whereof I have signed brush and said pulley, the pivot of the bracket specification in the presence of two subscrib 5 being arranged between the shaftlzland the axis Witnesses.

of the brush and in substantia y the same T y 1 plane with the same, Wherebythe brush may CLAREME IEMBLL BALD be moved to and from the conveyer-belt to Witnesses: take up Wear Without causing su bstantialslack THOMAS R. VVIER, Jr. 10 in said belt connection between the brush and EMIL CHAS. EGER. 

